CVE-2022-31157 HIGH

CVE-2022-31157: Use of a Broken or Risky Cryptographic Algorithm in packbackbooks/lti-1-3-php-library

Vendor Packbackbooks
Product lti-1-3-php-library
Weakness CWE-327 · Broken crypto
Published July 15, 2022
Last update April 23, 2025
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

What the vulnerability does

01Description

LTI 1.3 Tool Library is a library used for building IMS-certified LTI 1.3 tool providers in PHP. Prior to version 5.0, the function used to generate random nonces was not sufficiently cryptographically complex. Users should upgrade to version 5.0 to receive a patch. There are currently no known workarounds.

Key dates

02Disclosure timeline

July 15, 2022 CVE published
April 23, 2025 Record updated